Linux Kernel Vulnerability in Intel Network Driver

CVE-2025-38392

What is CVE-2025-38392?

A vulnerability in the Linux kernel affects the Intel network driver due to improper handling of the control queue mutex. When VIRTCHNL2_CAP_MACFILTER is enabled, a warning indicating that a sleeping function was called from an invalid context can be generated, leading to potential system instability. The issue arises from a mutex lock being held in an atomic context, which violates expected operational parameters for network management processes. The resolution involves converting the mutex lock to a spinlock, facilitating safer operation while ensuring proper memory handling during DMA operations.

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